JPH11297347A - Winding device for electrode body - Google Patents

Winding device for electrode body

Info

Publication number
JPH11297347A
JPH11297347A JP10094879A JP9487998A JPH11297347A JP H11297347 A JPH11297347 A JP H11297347A JP 10094879 A JP10094879 A JP 10094879A JP 9487998 A JP9487998 A JP 9487998A JP H11297347 A JPH11297347 A JP H11297347A
Authority
JP
Japan
Prior art keywords
winding
electrode body
belt
shape
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP10094879A
Other languages
Japanese (ja)
Inventor
Masaki Wakabayashi
正記 若林
Tomihiro Kurosu
富弘 黒須
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP10094879A priority Critical patent/JPH11297347A/en
Publication of JPH11297347A publication Critical patent/JPH11297347A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To wind an electrode body like a belt, so as to prevent weaving by smoothing a winding speed of a winding core formed whose sectional shape is elliptical. SOLUTION: This winding device comprises a winding core 2 for winding an electrode body S like a belt whose sectional shape is formed in a manner, such that length of long axis is different from that of short axis and which is formed by overlaying positive electrodes and negative electrodes, that are like a belt mutually through an insulating sheet, a driving pulley 3 which rotates the winding core 2, whose external shape is varied to a similar figure with the sectional shape of the winding core 2 by a shape adjusting mechanism 4, and a driving belt which is hooked to an outer peripheral portion of the driving pulley 3, thereby transmitting a driving force of the driving motor.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、角型電池に内蔵さ
れる電極と絶縁シートのような帯状材を巻き取るための
電極体の巻取り装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode winding device for winding a band-shaped material such as an electrode and an insulating sheet incorporated in a prismatic battery.

【0002】[0002]

【従来の技術】角型電池は、そのケース体内に、帯状の
正極及び負極が絶縁シートであるセパレータを介して交
互に重ね合わされてなる帯状電極体を巻芯に巻き付ける
ことにより渦巻状に巻かれた電極体が内蔵されて構成さ
れる。電極体は、巻芯を駆動してその外周面に帯状電極
体が巻き取られる巻取り装置が使用されて製造されてい
る。
2. Description of the Related Art A rectangular battery is spirally wound in a case body by winding a strip-shaped electrode body in which a strip-shaped positive electrode and a strip-shaped negative electrode are alternately superimposed via a separator, which is an insulating sheet, around a core. And a built-in electrode body. The electrode body is manufactured using a winding device that drives a winding core and winds a strip-shaped electrode body around its outer peripheral surface.

【0003】電極体の巻取り装置には、角型電池に内蔵
される電極体を製造するに際しては、巻取り操作が終了
して電極体を取り外す時の便宜を図る等のために、巻芯
がその断面形状を菱形や楕円形等の長軸と短軸の長さが
相違する形状に形成されたものが使用されている。
[0003] When manufacturing an electrode assembly incorporated in a prismatic battery, the winding device for the electrode assembly is provided with a winding core for the convenience of removing the electrode assembly after the winding operation is completed. However, there is used one whose cross-sectional shape is formed such that the length of the major axis and the minor axis are different, such as a rhombus or an ellipse.

【0004】電極体の巻取り装置は、上述した断面形状
が菱形や楕円形の巻芯を使用する場合に、巻芯の長軸と
短軸の長さが相違しているために、これを一定速度で駆
動させても外周部の外径が異なるために帯状電極体を巻
き取る周速が周期的に大きく変動していた。また、電極
体の巻取り装置は、巻芯の周速の周期的な変化に同期し
て巻取られる帯状電極体の速度も周期的に変化する。こ
のため、電極体の巻取り装置は、一定のテンションで帯
状電極体を巻芯に巻き取ることが困難であり、帯状電極
体の厚み方向に大きな巻ずれが生じるという問題が生じ
ていた。
[0004] In the winding device for an electrode body, when a core having a rhombus or elliptical cross section is used, the major axis and the minor axis of the core differ from each other. Even when driven at a constant speed, the peripheral speed of winding the band-shaped electrode body periodically fluctuates greatly because the outer diameter of the outer peripheral portion is different. Further, in the winding device of the electrode body, the speed of the strip-shaped electrode body that is wound is also periodically changed in synchronization with the periodic change of the peripheral speed of the winding core. For this reason, it is difficult for the winding device for the electrode body to wind the band-shaped electrode body around the core with a constant tension, and there has been a problem that a large winding deviation occurs in the thickness direction of the band-shaped electrode body.

【0005】このため、従来の電極体の巻取り装置にお
いては、帯状電極体を一定テンションで巻き取ることに
より、その巻ずれを防止するために、巻芯の駆動速度を
巻芯の形状に依存させることにより回転角度毎に巻芯の
巻取り速度を制御して帯状電極体を一定速度かつ一定テ
ンションで巻き取る方法が採用されていた。また、従来
の電極体の巻取り装置においては、帯状電極体が送り出
される速度を一定化してその速度を駆動モータにフィー
ドバックして巻芯の巻取り速度を制御する方法が採用さ
れていた。
For this reason, in a conventional winding device for an electrode body, the driving speed of the winding core depends on the shape of the winding core in order to prevent the winding deviation by winding the band-shaped electrode body at a constant tension. Thus, a method has been employed in which the winding speed of the winding core is controlled for each rotation angle to wind the strip-shaped electrode body at a constant speed and a constant tension. Further, in a conventional winding device for an electrode body, a method has been employed in which the speed at which the strip-shaped electrode body is fed out is made constant, and the speed is fed back to a drive motor to control the winding speed of the core.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、従来の
電極体の巻取り装置は、上述したような巻芯の巻取り速
度の制御を行っても、巻芯を駆動する駆動モータの挙動
が必ず巻芯の断面形状の変化に対して一定の遅れをもて
応答していた。このため、電極体の巻取り装置において
は、楕円形等の巻芯が用いられた場合には、その断面形
状の扁平率が増す、すなわち長軸と短軸の差異が広がる
ほど、また巻取り速度が増すほど上述したモータの応答
の遅れが顕著となる。電極体の巻取り装置は、巻芯の断
面形状の変化とモータの駆動速度の変化との位相のずれ
が大きくなると、巻芯の巻取り速度を平滑化できないば
かりか帯状電極体の巻ずれが増大する挙動を示すといっ
た問題があった。
However, in the conventional winding device for an electrode body, even when the winding speed of the winding core is controlled as described above, the behavior of the drive motor for driving the winding core is always increased. It responded with a certain delay to the change in the cross-sectional shape of the core. For this reason, in a winding device for an electrode body, when a winding core having an elliptical shape or the like is used, the flatness of the cross-sectional shape increases, that is, as the difference between the major axis and the minor axis increases, the winding also increases. As the speed increases, the above-described delay in the response of the motor becomes significant. When the phase difference between the change in the cross-sectional shape of the winding core and the change in the driving speed of the motor increases, not only the winding speed of the winding core cannot be smoothed, but also the winding deviation of the strip-shaped electrode body increases. There has been a problem of exhibiting increasing behavior.

【0007】また、電極体の巻取り装置は、巻芯が巻き
取られた帯状電極体の分だけ巻太りし、断面形状の長軸
と短軸の比率が変化するとともに、巻芯が帯状電極体を
巻き取る速度が変動するの範囲も変化するといった問題
があった。
In the electrode winding device, the winding is thickened by an amount corresponding to the band-shaped electrode body on which the winding core is wound, the ratio of the long axis to the short axis of the sectional shape is changed, and the winding core is formed in the band-shaped electrode. There has been a problem that the range in which the body winding speed fluctuates also changes.

【0008】このため、従来の電極体の巻取り装置にお
いては、巻ずれを防ぐために帯状電極体を巻芯に巻き取
る速度を下げざるを得ず、生産性を著しく落とす原因と
なっている。
For this reason, in the conventional winding device for an electrode body, the speed of winding the strip-shaped electrode body around the winding core has to be reduced in order to prevent a winding deviation, which causes a significant decrease in productivity.

【0009】そこで、本発明は、楕円形等に形成された
巻芯の巻取速度が巻取量に関係なく平滑化されるように
することにより、帯状電極体を巻ずれが起こらないよう
に巻き取るようにした電極体の巻取り装置を提供するこ
とを目的とするものである。
In view of the above, the present invention has been made to prevent the winding of the strip-shaped electrode from being unwinding by making the winding speed of the winding core formed in an elliptical shape or the like smooth regardless of the winding amount. It is an object of the present invention to provide a winding device for winding an electrode body.

【0010】[0010]

【課題を解決するための手段】上述した目的を達成する
本発明に係る電極体の巻取り装置は、断面形状が長軸と
短軸との長さを異にした形状に形成されるとともに帯状
の正極及び負極が絶縁シートを介して交互に重ね合わさ
れてなる帯状電極体を巻き取る巻芯と、巻芯を回転駆動
するとともに外形が巻芯の断面形状と相似形に可変され
る駆動プーリと、駆動プーリの外周部に掛け合わされて
巻取モータの回転を伝達する駆動ベルトを備えて構成さ
れる。
According to a first aspect of the present invention, there is provided a winding device for an electrode body, wherein a cross-sectional shape of the electrode body is different from that of a major axis and a minor axis in length. A winding core for winding a strip-shaped electrode body in which the positive electrode and the negative electrode are alternately superimposed via an insulating sheet, and a driving pulley for rotating the winding core and changing the outer shape to a shape similar to the cross-sectional shape of the winding core. And a drive belt that is hung on the outer periphery of the drive pulley to transmit the rotation of the winding motor.

【0011】以上のように構成された本発明に係る電極
体の巻取り装置によれば、帯状電極体の巻取量に応じて
外形形状が変化する巻芯を駆動する駆動プーリの形状を
巻取量に応じて次第に変化させることにより、帯状電極
体の巻取速度を下げることなく巻芯の巻取り速度を平滑
化して、帯状電極体の巻ずれを防止する。
According to the winding device for an electrode body according to the present invention configured as described above, the shape of the driving pulley for driving the winding core whose outer shape changes according to the winding amount of the strip-shaped electrode body is wound. By gradually changing the winding speed of the strip electrode body, the winding speed of the winding core can be smoothed without lowering the winding speed of the strip electrode body, thereby preventing the winding of the strip electrode body.

【0012】[0012]

【発明の実施の形態】以下、本発明に係る電極体の巻取
り装置の具体的な実施の形態について図面を参照しなが
ら詳細に説明する。本実施の形態にかかる電極体の巻取
り装置1は、帯状の正極及び負極が絶縁シートであるセ
パレータを介して交互に重ね合わされてなる帯状電極体
Sを渦巻状に巻き取ることにより角型電池に内蔵される
電極体を製造するものである。巻取り装置1は、図1に
示すように、帯状電極体Sを巻き取る巻芯2と、この巻
芯2を回転駆動する駆動プーリ3と、駆動プーリ3の形
状を変形させる形状調整機構4と、駆動プーリ3に掛け
合わされる駆動ベルト5とが基台6及び支持パネル7に
より支持されて構成されている。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a specific embodiment of a winding device for an electrode body according to the present invention will be described in detail with reference to the drawings. The winding device 1 for an electrode body according to the present embodiment is configured such that a band-shaped positive electrode and a band-shaped negative electrode are spirally wound on a band-shaped electrode body S, which is alternately stacked via a separator that is an insulating sheet, to form a rectangular battery. This is for manufacturing an electrode body incorporated in the device. As shown in FIG. 1, the winding device 1 includes a winding core 2 that winds the strip-shaped electrode body S, a driving pulley 3 that rotationally drives the winding core 2, and a shape adjustment mechanism 4 that deforms the shape of the driving pulley 3. And a drive belt 5 to be hung on the drive pulley 3 are supported by a base 6 and a support panel 7.

【0013】巻芯2は、巻軸ブッシュ8により回転自在
に支持される巻軸9の先端に取り付けられかつ支持パネ
ル7から突出して配設される。巻芯2は、断面形状が長
軸と短軸の長さが異なる形状、例えば楕円形に形成さ
れ、その外周面に帯状電極体Sが巻き取られる。巻芯2
は、帯状電極体Sが巻き取られる量によって帯状電極体
Sを巻き取る部分の形状、すなわち巻芯2の外周面に巻
き取られた帯状電極体Sを含む巻芯2の断面形状の長軸
と短軸の比率である楕円比率が変化する。また、巻芯2
は、上述したようにその帯状電極体Sを巻き取る部分の
形状が変化することにより回転角度毎の巻取速度も変化
する。
The winding core 2 is attached to the end of a winding shaft 9 rotatably supported by a winding bush 8 and is disposed so as to protrude from the support panel 7. The core 2 is formed in a cross-sectional shape in which the major axis and the minor axis have different lengths, for example, an elliptical shape, and the belt-shaped electrode body S is wound on the outer peripheral surface thereof. Core 2
Is the major axis of the cross-sectional shape of the winding core 2 including the band-shaped electrode body S wound on the outer peripheral surface of the winding core 2, that is, the shape of the portion where the band-shaped electrode body S is wound up according to the amount by which the band-shaped electrode body S is wound. And the elliptical ratio which is the ratio of the minor axis changes. In addition, core 2
As described above, the winding speed for each rotation angle also changes due to the change in the shape of the portion where the band-shaped electrode body S is wound as described above.

【0014】駆動プーリ3は、巻軸9に直結して取り付
けられる。駆動プーリ3は、図2に示すように、その外
周部に駆動モータ10によって駆動される出力プーリ1
1に掛け合わされた駆動ベルト5が掛け合わされる。駆
動プーリ3は、駆動モータ10の回転力が伝えられて回
転駆動されるとともに巻軸9及び巻軸9に取り付けられ
た巻芯2を回転駆動する。
The drive pulley 3 is mounted directly on the winding shaft 9. The drive pulley 3 is, as shown in FIG.
The drive belt 5 that has been multiplied by 1 is multiplied. The drive pulley 3 is rotationally driven by the rotation of the drive motor 10 being transmitted, and also rotationally drives the winding shaft 9 and the winding core 2 attached to the winding shaft 9.

【0015】駆動プーリ3は、図3に示すように、駆動
ベルト5が掛け合わされる円弧板状の4枚のベルト掛合
片3a乃至3dの各端部が第1の連結部材12及び第2
の連結部材13により連結され、楕円形の筒状に組み合
わされて構成されている。駆動プーリ3は、巻芯2の断
面形状と相似形、すなわち巻芯2の断面形状と同じ楕円
比率を有する楕円形に形成される。巻取り装置1は、駆
動プーリ3を巻芯2と相似形にすることで、駆動プーリ
3の大きさに対する巻芯2の大きさの比率と駆動ベルト
5の速度に対する帯状電極体Sの速度の比率とが等しく
なり、巻芯2の回転角度毎の帯状電極体Sを巻き取る速
度の周期的な変動の吸収が可能である。
As shown in FIG. 3, each of the drive pulleys 3 has a first connecting member 12 and a second connecting member 12 each of which has an arc-shaped plate-like four belt engaging pieces 3a to 3d on which the drive belt 5 is engaged.
, And are combined in an elliptical cylindrical shape. The drive pulley 3 is formed in a shape similar to the cross-sectional shape of the core 2, that is, an elliptical shape having the same elliptical ratio as the cross-sectional shape of the core 2. The winding device 1 is configured such that the drive pulley 3 has a shape similar to that of the winding core 2, so that the ratio of the size of the winding core 2 to the size of the driving pulley 3 and the speed of the strip-shaped electrode body S with respect to the speed of the driving belt 5. The ratio becomes equal, and it is possible to absorb the periodic fluctuation in the speed at which the band-shaped electrode body S is wound at each rotation angle of the core 2.

【0016】第1の連結部材12は、駆動プーリ3の一
端面においてベルト掛合片3a乃至3dを互いに連結す
る。第1の連結部材は、ベルト掛合片3a乃至3dの各
端部に設けられた連結ピン14が、第1の連結部材12
に設けられるとともに連結ピン14の形状に対応して形
成された図示を省略する連結孔に嵌合されることによっ
て可動自在な構造とされる。
The first connecting member 12 connects the belt engaging pieces 3a to 3d to each other at one end surface of the driving pulley 3. The first connecting member includes a connecting pin 14 provided at each end of the belt engaging pieces 3a to 3d.
And is movable by being fitted in a connection hole (not shown) formed corresponding to the shape of the connection pin 14.

【0017】第1の連結部材12は、駆動プーリ3の高
さ方向の連結点、すなわちベルト掛合片3aとベルト掛
合片3dの端部及びベルト掛合片3bとベルト掛合片3
cの端部をそれぞれ上側連結部材15と下側連結部材1
6とにより連結する。上側連結部材15は、断面L字状
に形成されるとともに、その内部室内に回転自在に両端
が支持されたローラ17が設けられる。また、下側連結
部材16は、上側連結部材15と同様に形成され、ロー
ラ18が設けられている。ローラ17,18は、後述す
る調整子21が嵌合される際に調整子21を巻き込むよ
うに回転して、調整子21を円滑に嵌合させる。
The first connecting member 12 is a connecting point of the driving pulley 3 in the height direction, that is, the ends of the belt engaging pieces 3a and 3d and the belt engaging pieces 3b and 3b.
c to the upper connecting member 15 and the lower connecting member 1 respectively.
And 6. The upper connecting member 15 is formed in an L-shaped cross section, and is provided with a roller 17 whose both ends are rotatably supported in an inner chamber thereof. The lower connecting member 16 is formed in the same manner as the upper connecting member 15 and is provided with a roller 18. The rollers 17 and 18 rotate so as to wind the adjuster 21 when the adjuster 21 described later is fitted, and the adjuster 21 is fitted smoothly.

【0018】第1の連結部材12は、図示を省略するス
プリングによって上側連結部材15と下側連結部材16
とがその間隔が閉じられる方向に付勢されている。第1
の連結部材12は、上側連結部材15と下側連結部材1
6との間隔が閉じられている状態では、駆動プーリ3の
形状を巻芯2自体の断面形状の相似形に形成する。すな
わち、第1の連結部材12は、上側連結部材15と下側
連結部材16との間隔が開かれない限り変形可能な駆動
プーリ3の形状を巻芯2の断面形状の相似形に保持す
る。
The first connecting member 12 is connected to the upper connecting member 15 and the lower connecting member 16 by a spring (not shown).
Are biased in a direction to close the gap. First
Of the upper connecting member 15 and the lower connecting member 1
In a state where the space between the core 6 is closed, the shape of the drive pulley 3 is formed to be similar to the cross-sectional shape of the core 2 itself. That is, the first connection member 12 holds the shape of the drive pulley 3 that can be deformed to be similar to the cross-sectional shape of the core 2 unless the space between the upper connection member 15 and the lower connection member 16 is widened.

【0019】第2の連結部材13は、駆動プーリ3の他
端面においてベルト掛合片3a乃至3dを互いに第1の
連結部材12と同様な方法で可動自在に連結する。第2
の連結部材13は、楕円形に組み合わされた駆動プーリ
3の高さ方向の連結点においてベルト掛合片3aとベル
ト掛合片3dの端部及びベルト掛合片3bとベルト掛合
片3cの端部を第2の連結部材13aにより連結する。
また、第2の連結部材8は、駆動プーリ3の幅方向の連
結点においてベルト掛合片3aとベルト掛合片3bの端
部及びベルト掛合片3cとベルト掛合片3dの端部を第
2の連結部材13bにより連結する。第2の連結部材1
3aは、駆動プーリ3が連結される反対側の主面に溝部
19が形成されている。また、第2の連結部材13b
は、駆動プーリ3が連結される反対側の主面に突部20
が形成されている。
The second connecting member 13 movably connects the belt engaging pieces 3a to 3d to each other at the other end surface of the driving pulley 3 in the same manner as the first connecting member 12. Second
Of the belt pulling piece 3a and the belt hooking piece 3d and the end of the belt hooking piece 3b and the belt hooking piece 3c at the connecting point in the height direction of the drive pulley 3 combined with the elliptical shape. They are connected by the second connecting member 13a.
The second connecting member 8 connects the ends of the belt engaging pieces 3a and 3b and the ends of the belt engaging pieces 3c and 3d at a connecting point in the width direction of the driving pulley 3 with a second connection. They are connected by a member 13b. Second connecting member 1
3a has a groove 19 formed on the opposite main surface to which the drive pulley 3 is connected. Also, the second connecting member 13b
Has a projection 20 on the opposite main surface to which the drive pulley 3 is connected.
Are formed.

【0020】駆動プーリ3は、形状調整機構4により巻
芯2によって巻き取られる帯状電極体Sの巻き取り量に
応じて、その形状が変化される。巻取り装置1において
は、巻芯2が巻き取った帯状電極体Sの量によって巻き
取られた帯状電極体Sを含む巻芯2の断面形状が変化
し、帯状電極体Sを巻き取る速度が変動する範囲が変化
する。このため、巻取り装置1は、巻き取られた帯状電
極体Sの部分を含む巻芯2の断面形状の変化と同期させ
て駆動プーリ3の形状を変化させることで、巻芯2の帯
状電極体Sの巻取り速度の範囲の変動に対応する。
The shape of the drive pulley 3 is changed according to the amount of winding of the strip-shaped electrode body S wound by the winding core 2 by the shape adjusting mechanism 4. In the winding device 1, the cross-sectional shape of the winding core 2 including the wound strip electrode body S changes depending on the amount of the strip electrode body S wound by the winding core 2, and the speed at which the strip electrode body S is wound is reduced. The fluctuating range changes. For this reason, the winding device 1 changes the shape of the drive pulley 3 in synchronization with the change in the cross-sectional shape of the winding core 2 including the portion of the wound strip-shaped electrode body S. This corresponds to a change in the range of the winding speed of the body S.

【0021】形状調整機構4は、調整子21と、ガイド
部材22とで構成されている。調整子21は、円錐形状
に形成されるとともに、後述する調整操作においてサー
ボアクチュエータ23によって軸方向に調整移動され
る。調整子21は、その尖端が第1の連結部材12に設
けられたローラ17,18との間に嵌合され上側連結部
材15と下側連結部材16とを両者が離間する方向に押
圧する。サーボアクチュエータ23は、予め計算されて
いる巻き取られた帯状電極体Sの量と巻き取られた帯状
電極体Sを含む巻芯2の断面形状の楕円比率の変化との
関係についての計算結果に基づいて調整子21を調整移
動させる。
The shape adjusting mechanism 4 includes an adjuster 21 and a guide member 22. The adjuster 21 is formed in a conical shape, and is adjusted and moved in the axial direction by a servo actuator 23 in an adjustment operation described later. The tip of the adjuster 21 is fitted between the rollers 17 and 18 provided on the first connecting member 12 and presses the upper connecting member 15 and the lower connecting member 16 in a direction in which the two are separated from each other. The servo actuator 23 calculates the relationship between the previously calculated amount of the wound strip electrode body S and the change in the elliptic ratio of the cross-sectional shape of the core 2 including the wound strip electrode body S. The adjuster 21 is adjusted and moved based on the adjustment.

【0022】ガイド部材22は、基盤24の主面上にガ
イド軸25a及びガイド溝26が形成されたガイド軸2
5bによって構成されている。ガイド軸25aは、第2
の連結部材13aに形成された溝部19に嵌入され、第
2の連結部材13aの移動範囲及び駆動プーリ3の変形
範囲を高さ方向にガイドする。ガイド軸25bは、その
ガイド溝26に第2の連結部材13bに形成された突部
20が嵌入され、第2の連結部材13bの移動範囲及び
駆動プーリ3の変形範囲を幅方向にガイドする。ガイド
部材22は、第2の連結部材13a,13bの動きをそ
れぞれガイドしてその動く軌道を制限することにより、
変形可能な駆動プーリー3が変形できる範囲を制限して
駆動プーリ3が巻芯2の断面形状とかけ離れた形状に変
形することを防止する。
The guide member 22 includes a guide shaft 2 having a guide shaft 25a and a guide groove 26 formed on the main surface of the base 24.
5b. The guide shaft 25a is
And guides the moving range of the second connecting member 13a and the deformation range of the driving pulley 3 in the height direction. The protrusion 20 formed on the second connecting member 13b is fitted into the guide groove 26 of the guide shaft 25b, and guides the moving range of the second connecting member 13b and the deformation range of the driving pulley 3 in the width direction. The guide member 22 guides the movement of the second connecting members 13a and 13b, respectively, and restricts the moving trajectory.
The range in which the deformable drive pulley 3 can be deformed is limited to prevent the drive pulley 3 from being deformed into a shape far from the cross-sectional shape of the core 2.

【0023】巻取り装置1は、帯状電極体Sの巻き取り
が開始されかつ第1の連結部材12のローラ17,18
の間に調整子21の尖端が嵌合される前は、駆動プーリ
3を連結する第1の連結部材12の上側連結部材15と
下側連結部材16とがスプリングの付勢力によって閉じ
られている。このため、駆動プーリ3は、図4aに示す
ように、所定の形状、すなわち巻芯2自体の断面形状の
相似形に形成保持される。
The winding device 1 starts the winding of the strip-shaped electrode body S and the rollers 17 and 18 of the first connecting member 12.
Before the pointed end of the adjuster 21 is fitted between the upper and lower connecting members 15 and 16 of the first connecting member 12 for connecting the drive pulley 3, the upper connecting member 15 and the lower connecting member 16 are closed by the urging force of the spring. . Therefore, the drive pulley 3 is formed and held in a predetermined shape, that is, a shape similar to the cross-sectional shape of the core 2 itself, as shown in FIG. 4A.

【0024】巻取り装置1は、帯状電極体Sの巻き取り
が開始されかつ第1の連結部材12のローラ17,18
の間に調整子21の尖端が嵌合されて調整操作が行われ
ると、調整子21により押圧された上側連結部材15と
下側連結部材16との間隔が開かれる。駆動プーリ3
は、各ベルト掛合片3a乃至3dの端部が上側連結部材
15と下側連結部材16により連結されているため、各
ベルト掛合片3a乃至3dが上側連結部材15と下側連
結部材16によって引っ張られる。このため、駆動プー
リ3は、図4bに示すように、その形状が高さ方向に拡
張されかつ幅方向に収斂される。
The winding device 1 starts the winding of the strip-shaped electrode body S and the rollers 17 and 18 of the first connecting member 12.
When the sharp end of the adjuster 21 is fitted between the two and the adjustment operation is performed, the space between the upper connecting member 15 and the lower connecting member 16 pressed by the adjuster 21 is opened. Drive pulley 3
Since the ends of the belt engaging pieces 3a to 3d are connected by the upper connecting member 15 and the lower connecting member 16, the respective belt engaging pieces 3a to 3d are pulled by the upper connecting member 15 and the lower connecting member 16. Can be Therefore, as shown in FIG. 4B, the shape of the driving pulley 3 is expanded in the height direction and converged in the width direction.

【0025】すなわち、巻取り装置1は、例えば、帯状
電極体Sが巻かれていない状態において幅23mm、高さ
8mm、楕円比率2.88の巻芯2に帯状電極体Sを巻き
取って、幅30.5mm、高さ15.5mm、縦横比1.9
7の渦巻状の電極体を製造する場合には、以下のように
駆動プーリ3を変形させる。
That is, for example, the winding device 1 winds the strip electrode body S around the winding core 2 having a width of 23 mm, a height of 8 mm, and an elliptic ratio of 2.88 in a state where the strip electrode body S is not wound. 30.5mm in width, 15.5mm in height, 1.9 aspect ratio
When the spiral electrode body 7 is manufactured, the drive pulley 3 is deformed as follows.

【0026】まず、巻取り装置1は、駆動プーリ3の楕
円比率を巻芯2自体の楕円比率2.88に合わせて、例
えば、幅115.2mm、高さ40mm、楕円比率2.88
の楕円形を形成するようにベルト掛合片3a乃至3dを
組み合わせて、その形状を第1の連結部材12を連結す
ることにより保持する。
First, the winding device 1 adjusts the elliptical ratio of the drive pulley 3 to the elliptical ratio 2.88 of the winding core 2 itself, for example, a width of 115.2 mm, a height of 40 mm, and an elliptical ratio of 2.88.
The belt engaging pieces 3a to 3d are combined so as to form the elliptical shape, and the shape is held by connecting the first connecting member 12.

【0027】そして、巻取り装置1は、巻芯2の帯状電
極体Sが巻き取られる量に対応して駆動プーリ3の形状
を変形させるために、調整子21の尖端が第1の連結部
材12のローラ17,18との間に嵌合される。調整子
21は、サーボアクチュエータ23により駆動プーリの
形状が幅109.5mm、高さ56mm、楕円比率1.97
の楕円形になるまで調整移動され、その尖端が嵌合され
る。
In order to deform the shape of the drive pulley 3 in accordance with the amount by which the strip-shaped electrode body S of the winding core 2 is wound, the winding device 1 has the tip of the adjuster 21 connected to the first connecting member. Twelve rollers 17 and 18 are fitted. The adjuster 21 has a drive pulley having a width of 109.5 mm, a height of 56 mm, and an elliptical ratio of 1.97 by the servo actuator 23.
Is adjusted until it becomes elliptical, and its pointed end is fitted.

【0028】駆動ベルト5は、図2に示すように、駆動
プーリ3及び駆動モータ10の出力プーリ11に掛け合
わされて、駆動プーリ3に出力プーリ11により出力さ
れる駆動モータ6の回転力を伝える。駆動ベルト5は、
巻芯2に巻き取られる帯状電極体Sの巻芯2へ巻き取ら
れる角度と同じ角度で駆動モータ10から駆動プーリ3
へと掛け合わされている。
As shown in FIG. 2, the drive belt 5 is hung on the drive pulley 3 and the output pulley 11 of the drive motor 10 to transmit the torque of the drive motor 6 output by the output pulley 11 to the drive pulley 3. . The drive belt 5 is
The drive pulley 3 is driven by the drive motor 10 at the same angle as the angle at which the strip-shaped electrode body S wound around the core 2 is wound around the core 2.
Has been multiplied.

【0029】また、駆動ベルト5は、複数個のガイドロ
ーラ27に掛け合わされる。ガイドローラ27は、図示
を省略するスプリングで付勢されることにより、駆動ベ
ルト5にテンションを与えて回転角度によって周速が異
なる駆動プーリ3が回転することで発生する駆動ベルト
5の弛みを吸収する。
The drive belt 5 is hung on a plurality of guide rollers 27. The guide roller 27 is urged by a spring (not shown) to apply tension to the drive belt 5 and absorb slack in the drive belt 5 caused by rotation of the drive pulley 3 having a different peripheral speed depending on the rotation angle. I do.

【0030】巻取り装置1は、上述したように帯状電極
体Sが巻き取られる前から巻き取り終わるまでの巻芯2
の断面形状の楕円比率に合わせて巻芯2を回転駆動する
駆動プーリ3の形状が変化するため帯状電極体Sの巻取
り速度を平滑化できる。
The winding device 1 includes a winding core 2 from before the winding of the strip-shaped electrode body S until the winding is completed, as described above.
Since the shape of the drive pulley 3 for rotatingly driving the winding core 2 changes in accordance with the elliptic ratio of the cross-sectional shape of, the winding speed of the strip-shaped electrode body S can be smoothed.

【0031】[0031]

【発明の効果】本発明に係る電極体の巻取り装置によれ
ば、巻芯を駆動する駆動プーリーの形状を巻芯の断面形
状と相似形にすることにより、巻芯の巻取速度を平滑化
する。このため、本発明に係る電極体の巻取り装置は、
一定テンションの下での帯状電極体の巻き取りを可能に
して、帯状電極体の巻ずれを減少させるとともに、帯状
材の巻ずれに起因する内部ショート等の電池の基本性能
にかかわる品質を安定させることができる。また、本発
明に係る電極体の巻取り装置は、巻取り速度の平滑化に
よる帯状電極体の巻ずれの減少により、帯状電極体の巻
取り速度を下げずに巻き取りを行うことができるため、
生産性の向上を図ることができる。
According to the winding device for an electrode body according to the present invention, the shape of the driving pulley for driving the winding core is made similar to the cross-sectional shape of the winding core, thereby smoothing the winding speed of the winding core. Become For this reason, the winding device of the electrode body according to the present invention,
Enables winding of the band-shaped electrode body under a constant tension, reduces winding deviation of the band-shaped electrode body, and stabilizes the quality related to the basic performance of the battery such as internal short-circuit due to the winding deviation of the band-shaped material. be able to. Further, the winding device for an electrode body according to the present invention can perform winding without lowering the winding speed of the band-shaped electrode body by reducing the winding deviation of the band-shaped electrode body by smoothing the winding speed. ,
Productivity can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】電極体の巻取り装置の一部切欠き側面図であ
る。
FIG. 1 is a partially cutaway side view of a winding device for an electrode body.

【図2】電極体の巻取り装置の要部背面図である。FIG. 2 is a rear view of a main part of a winding device for an electrode body.

【図3】形状調整機構を説明するための分解斜視図であ
る。
FIG. 3 is an exploded perspective view for explaining a shape adjusting mechanism.

【図4】aは駆動プーリの通常の状態を示す図であり、
bは駆動プーリが調整子によって変形させられた状態を
示す図である。
FIG. 4A is a diagram showing a normal state of a driving pulley,
b is a diagram showing a state in which the driving pulley is deformed by the adjuster.

【符号の説明】[Explanation of symbols]

1 巻取り装置,2 巻芯,3 駆動プーリ,3a〜3
d ベルト掛合片,4形状調整機構,5 駆動ベルト,
10 駆動モータ,12 第1の連結部材,13 第2
の連結部材,21調整子 ,22 ガイド部材,S 帯
状電極体
1 winding device, 2 winding core, 3 drive pulley, 3a-3
d Belt engaging piece, 4 shape adjusting mechanism, 5 drive belt,
10 drive motor, 12 first connecting member, 13 second
Connecting member, 21 adjuster, 22 guide member, S-shaped electrode body

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 断面形状が長軸と短軸との長さを異にし
た形状に形成されるとともに帯状の正極及び負極が絶縁
シートを介して交互に重ね合わされてなる帯状電極体を
巻き取る巻芯と、 上記巻芯を回転駆動するとともに外形が上記巻芯の断面
形状と相似形に可変される駆動プーリと、 上記駆動プーリの外周部に掛け合わされて巻取モータの
回転を伝達する駆動ベルトを備え、 上記駆動プーリは、その外形形状が形状調整機構によっ
て上記巻芯に巻き取られる上記帯状電極体の巻取量によ
って変化する巻芯の形状変化に応じて次第に変化される
ことを特徴とする電極体の巻き取り装置。
1. A belt-like electrode body having a cross-sectional shape different in length between a major axis and a minor axis and winding a belt-like positive electrode and a negative electrode alternately through an insulating sheet. A winding core, a driving pulley that drives the rotation of the winding core and whose outer shape is changed to be similar to the cross-sectional shape of the winding core, and a drive that is hung on the outer peripheral portion of the driving pulley to transmit rotation of the winding motor. A belt, wherein the drive pulley has an outer shape that is gradually changed according to a change in the shape of the winding core that is changed by a winding amount of the strip-shaped electrode body wound around the winding core by a shape adjusting mechanism. Winding device for an electrode body.
【請求項2】 上記駆動プーリは、 複数個のベルト掛合片と、これらベルト掛合片の両端を
それぞれ回動自在に連結する第1の連結部材と第2の連
結部材とによって構成されることを特徴とする請求項1
に記載の電極体の巻き取り装置。
2. The driving pulley, comprising: a plurality of belt engaging pieces; and a first connecting member and a second connecting member which rotatably connect both ends of the belt engaging pieces, respectively. Claim 1.
3. The winding device for an electrode body according to claim 1.
【請求項3】 上記形状調整機構は、 上記第1の部材を介して上記各ベルト掛合片を拡張又は
収斂する方向に移動させる調整子と、上記第2の部材を
ガイドするガイド部材とで構成されることを特徴とする
請求項2に記載の電極体の巻き取り装置。
3. The shape adjusting mechanism includes an adjuster that moves the belt engaging pieces in a direction to expand or converge via the first member, and a guide member that guides the second member. The winding device for an electrode body according to claim 2, wherein
【請求項4】 上記駆動ベルトは、上記駆動プーリーに
対する掛合せ角度が上記帯状の電極体が上記巻芯に巻き
取られる角度と同一であることを特徴とする請求項1に
記載の電極体の巻取り装置。
4. The electrode body according to claim 1, wherein an angle at which the drive belt is engaged with the drive pulley is the same as an angle at which the band-shaped electrode body is wound around the winding core. Winding device.
JP10094879A 1998-04-07 1998-04-07 Winding device for electrode body Withdrawn JPH11297347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10094879A JPH11297347A (en) 1998-04-07 1998-04-07 Winding device for electrode body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10094879A JPH11297347A (en) 1998-04-07 1998-04-07 Winding device for electrode body

Publications (1)

Publication Number Publication Date
JPH11297347A true JPH11297347A (en) 1999-10-29

Family

ID=14122347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10094879A Withdrawn JPH11297347A (en) 1998-04-07 1998-04-07 Winding device for electrode body

Country Status (1)

Country Link
JP (1) JPH11297347A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002270213A (en) * 2001-03-14 2002-09-20 Shimane Jidoki Kk Take-up method and take-up device of band element for flat electronic component
KR100402748B1 (en) * 2001-12-22 2003-10-22 삼성에스디아이 주식회사 Mandrel for winding electrode assembly of secondary battery
JP2009295467A (en) * 2008-06-06 2009-12-17 Hitachi Vehicle Energy Ltd Wound secondary battery and its manufacturing method
US10224573B2 (en) 2016-03-28 2019-03-05 Bosch Battery Systems, Llc Wound electrode assembly for an electrochemical cell, and methods and devices for manufacture of same
CN110114929A (en) * 2019-03-29 2019-08-09 深圳市诚捷智能装备股份有限公司 Winding device
CN113270625A (en) * 2021-04-22 2021-08-17 山东水利职业学院 Winding equipment is used in new energy automobile battery production
WO2021196205A1 (en) * 2020-04-03 2021-10-07 大族激光科技产业集团股份有限公司 Multi-stage transmission shaft device and system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002270213A (en) * 2001-03-14 2002-09-20 Shimane Jidoki Kk Take-up method and take-up device of band element for flat electronic component
KR100402748B1 (en) * 2001-12-22 2003-10-22 삼성에스디아이 주식회사 Mandrel for winding electrode assembly of secondary battery
JP2009295467A (en) * 2008-06-06 2009-12-17 Hitachi Vehicle Energy Ltd Wound secondary battery and its manufacturing method
US10224573B2 (en) 2016-03-28 2019-03-05 Bosch Battery Systems, Llc Wound electrode assembly for an electrochemical cell, and methods and devices for manufacture of same
US11588183B2 (en) 2016-03-28 2023-02-21 Robert Bosch Battery Systems Llc Wound electrode assembly for an electrochemical cell, and methods and devices for manufacture of same
CN110114929A (en) * 2019-03-29 2019-08-09 深圳市诚捷智能装备股份有限公司 Winding device
CN110114929B (en) * 2019-03-29 2022-04-26 深圳市诚捷智能装备股份有限公司 Winding device
WO2021196205A1 (en) * 2020-04-03 2021-10-07 大族激光科技产业集团股份有限公司 Multi-stage transmission shaft device and system
CN113270625A (en) * 2021-04-22 2021-08-17 山东水利职业学院 Winding equipment is used in new energy automobile battery production

Similar Documents

Publication Publication Date Title
WO2014034705A1 (en) Winding device and winding method
JPH11297347A (en) Winding device for electrode body
JP6575263B2 (en) Winding device
CN100560379C (en) Rotating torques adjusting device, ink-ribbon conveying mechanism and printer
JPH06168736A (en) Manufacture of spiral electrode body
CN218527965U (en) Diameter-adjustable winding drum and hair curler
WO2023029663A1 (en) Coating device
US4030567A (en) Spring drum
CN220753501U (en) Pole piece winding tool and winding machine
JP2000063010A (en) Separating device and winding device
CN112863771A (en) Superconductive strip adjusting and limiting winding device for conductor
CN221093106U (en) Tensioning device for gilding paper production
CN220334264U (en) Pneumatic thin film breaking equipment
JP2001021005A (en) Core wire winding device for transmission belt
CN116238946A (en) Tension adjusting device and method
CN217417665U (en) Coiling mechanism and equipment of cutting
CN220239793U (en) Stretching assembly and stretching device
CN214000572U (en) Rubber tube coating winding machine
CN215516196U (en) Mechanical expansion type membrane rim charge winding device
CN219009425U (en) Winding mechanism with good material collecting stability
JP3539626B2 (en) Method of manufacturing spiral roller plate and method of manufacturing spiral roller plate
JP2005158928A (en) Winding device of toroidal core
JP2815806B2 (en) Spring spring mechanism
JP2825416B2 (en) Image recording device
CN116946776A (en) Synchronous unreeling mechanism

Legal Events

Date Code Title Description
A300 Application deemed to be withdrawn because no request for examination was validly filed

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20050607